$$\:7\cdot x^{\frac{3}{4}}+y^{\frac{3}{4}}=7$$

$$-3m+4m-5m-\left(-5\right)$$

$$9\left(1234\right)$$

$$2\sin\left(x\right)^2-4sinx=0$$

$$2x^2-2x+7=5$$

$$\frac{x^3+2x^2-5x+7}{x+1}$$

$$\frac{cos^2x-2}{cosx-4}$$